ASTM D7285-25 PDF

Full title and description

ASTM D7285-25 — Standard Guide for Recordkeeping Microfiltration and Ultrafiltration Systems. A concise guide that defines recommended recordkeeping content and formats for microfiltration (MF) and ultrafiltration (UF) treatment systems, including start-up reports, operating data logs, pretreatment records, and maintenance logs applicable to a variety of membrane configurations (spiral-wound, hollow-fiber, tubular) used with surface water, ground water and some secondary effluents.

Abstract

This guide provides general, site‑independent recommendations for consistent, well‑defined recordkeeping of MF and UF systems to support operation, maintenance, performance evaluation and troubleshooting. It describes the types of records to retain (start‑up, operational, pretreatment and maintenance), the typical data elements and recommended collection frequency, and notes limitations of applicability (for example, not intended for membrane bioreactors or certain process streams). The guide is intended to supplement — not replace — plant‑specific operating manuals.

General information

• Status: Active.
• Publication date: 2025 (designation D7285-25; ASTM listings show issuance in 2025 with ASTM record last updated July 9, 2025).
• Publisher: ASTM International.
• ICS / categories: 13.060.10 (Water of natural resources / water treatment & resources).
• Edition / version: D7285-25 (current revision).
• Number of pages: 2.

Scope

The standard covers procedures for clearly defined recordkeeping for microfiltration and ultrafiltration systems. It addresses: preparation of a start‑up report; ongoing recordkeeping of MF/UF operating parameters; pretreatment system operating data; and a maintenance log. The guide is applicable to membrane systems treating surface water, ground water and some wastewater (secondary effluent) and to systems using spiral‑wound, hollow‑fiber or tubular membrane elements. It is not intended for membrane bioreactors or many process‑stream applications.

Key topics and requirements

• Required record types: start‑up reports, routine operating logs, pretreatment records, maintenance logs.
• Recommended data elements: flux/transmembrane pressure, permeate quality, cleaning events, chemical dosages, differential pressures, flow rates, temperatures, operational alarms and corrective actions.
• Applicability guidance: surface water, ground water and selected secondary effluents; common membrane element types (spiral‑wound, hollow‑fiber, tubular).
• Exclusions and limitations: not applicable to membrane bioreactors or many process streams; site‑specific adjustments expected.
• Purpose: support performance evaluation, preventative maintenance, regulatory reporting and operator/troubleshooting activities.

Typical use and users

Used by water and wastewater treatment plant operators, process and design engineers, membrane system manufacturers, commissioning teams, operations managers, maintenance staff, and regulatory/compliance personnel who need a standardized approach to collecting and retaining MF/UF system data for performance assessment, troubleshooting and record retention.

Related standards

This guide was developed under ASTM Committee D19 (Subcommittee D19.08). Related documents include earlier versions of this guide (D7285-06 and subsequent revisions) and other ASTM guides and test methods covering membrane processes, pretreatment and water treatment instrumentation and sampling. Users commonly consult companion ASTM and industry standards on membrane testing, cleaning protocols and operational performance metrics when implementing the recordkeeping recommendations.

Keywords

microfiltration, ultrafiltration, recordkeeping, operating data, start‑up report, maintenance log, pretreatment, membrane systems, spiral‑wound, hollow‑fiber, tubular, water treatment.

FAQ

Q: What is this standard?

A: ASTM D7285-25 is a concise guide that specifies recommended recordkeeping practices for microfiltration and ultrafiltration systems used in water and certain wastewater applications.

Q: What does it cover?

A: It covers the types of records to maintain (start‑up report, MF/UF operating data, pretreatment operating data, maintenance logs), suggested data elements and general guidance on frequency and applicability. It clarifies scope and limitations (for example, it is not intended for membrane bioreactors).

Q: Who typically uses it?

A: Operators, engineers, commissioning and maintenance teams, membrane suppliers, consultants and regulators working with MF/UF systems in drinking water and some wastewater treatment settings.

Q: Is it current or superseded?

A: The D7285-25 edition is the current active version (revision year 2025). ASTM records indicate the D7285-25 version is active as of 2025 with a recent update noted in July 2025.

Q: Is it part of a series?

A: It is part of the body of ASTM Committee D19 water‑related standards and relates to prior D7285 editions (for example, D7285-06 and intervening revisions). It complements other ASTM test methods and guides addressing membrane performance, testing and pretreatment.

Q: What are the key keywords?

A: Microfiltration, ultrafiltration, recordkeeping, operating data, maintenance log, pretreatment, membrane systems, water treatment.